... Stepper motor + PLC + JX01 Microcomputer Contr Transformer(63KVA)Special welding mould ( key) Stepper motor + PLC + JX01 Microcomputer Control ... Process :A, install the workpiece on the welding mould.B, start the “working” buttonC,cylinder1 , cylinder ... 2 pressurizing at the same time, welding, returnD, Stepper motor drive the welding mould Rotate, turn to next placeE, cylinder1 ...